Heel breasting machine



Nov. 19, O 1940. H, a MU'NSQN 2,222,421

' HEEL BREASTING MACHINE Nov. 19, wm. H. B. MUNSON 2,222142f1 HEEL BREASTING MACHINE Filed Apr-il '7, V1939 3 Sheets-Sheet 2 Nov. 19, '1940.

H. B. MUNSON HEEL BREASTING MACHINE Filed April 7, 1939 5 Sheets-Sheet 3 Patented Nov. 19, 1940 iATENT rGFFECE HEELBREASTING MACHINE kflioward lB. .Munson Chicago, Ill., assigner vto Wilder & Company, Chicago, Ill., a corporation of yIllinois Applicaticn April 7, 1939,-Serial No. 266,53)

11 Claims. (C11. 12--47.1)

The invention relates to improvements in heel breasting'machines and has for its primary object .the provision of an improved machine of the character indicated which is capable of quickly, accurately, uniformly and artistically .shaping and 'dressing the breasts of heel blanks for use inthe making of shoes.

Another object of the invention is the provision of amachine of the character indicated so l0 constructed and arranged that the form and shape of the heel breast formed may be varied as desired and more particularly may be cut or dressed with straightl edges.

Other objects will `appear hereinafter.

The invention consists of the combinations and arrangements of parts hereinafter described and claimed. y

The invention will be .best understood by reference to the accompanying drawings forming a part of this specification and in :which Fig. 1 is a front view of a portion vof a machine Iembodying the invention;y

Fig. 2 a side View thereof;

Fig. Y3 a top plan View ofthe machine;

Fig. eis an enlarged partial horizontal section taken substantially on line 4-4 of Fig. 2;

Fig. 5'an enlarged vertical section taken substantially on line 5-5 of Fig. 1;

Fig. 6 an enlarged detail view of the machine taken .on line AIS--B of Fig. 4;

Fig. .7 a side view o'f a heel blank before cutting or dressing;

Fig. 8 a top plan view of said heel blank;

.'Fig. 9 a vertical section of a heel blank after 351the-breastthereof has been cut and dressed in the 'ma-chine; and

Fig. l0 a top plan view ofvsaid cut heel blank.

The embodiment of the invention illustrated -in the'drawingsis in the form of attachments or additions added to an ordinary well known hand milling machine. vBrieflyfland generally` this milling machine comprises va suitable support or standard having -a laterally extending supporting bracket II vertically and laterally adjustable thereon. A worktable I2 is mounted as shown on the supporting bracket I I to slide horizontally on a guide I3 and carries a depending rack bar I4 meshing with a pinion I 5 on an operating shaft IS carrying an operating handle I1 so constructed and arranged that the work table I2 may be slidably and manually adjusted horizontally on the guide I3 by manipulations of the handle I'I in the usual way.

The frame of the machine is also provided 65 with an upstanding supporting standard I8 havnby belt 26 with pulley 21' on the driven shaft 23 of themachine. The outer or'free end of the shaft 24 is further supported by a conical bearing'ZS in a bracket 29 adjustably clamped 'as indicated on the usual supporting rod 3i). ,15,

So much of the machine as -has already been described constitutes the main workingA parts of an ordinary well known handmilling machine and constitutes no part of my present invention except in 'so far as the samecooperates with the 2o attachments thereto tobev presently described.

A clamping member having a 'base 3l Vis adjustablymounted and -securedon the `work table I2 by means of clamping bolts 32 and is provided with -an upstanding support or standard 25 33 as best shown in Figs.` 2 Yand l. A heel clamp rest 34 is yadjustably arranged as shown at the top-of -the `standard 33 and is provided with two positioning pins 35 adapted to enter corresponding 'openings in the bottom of a heel blank and 30 thus accurately position the same on said rest.

A clamping head 36 is arranged as shown to cooperate ywith the rest 34v to clamp a heel blank thereon, said head being adjustably mounted as shown upon a `yoke 31 carried bythe upper ends 35 lof vertically reciprocating rack bars 38 projecting upwardly from the standard 33. The rack bars 38 mesh with operating 4pinions 39 on an operating shaft 40 which is operated by a handle lever 4l. Handle lever 4I carries a spring held ,40 pawl 42, best shown in Fig. 4, said pawlcooperating with a segmentalratchet wheel 43 on the standard 33 to lock said handle lever 4I in various .positions of adjustment. The operation of the kpawl t2 is .controlled by a cam lever 44 opl45 erating to release the lever 4I when the same is grasped in the hand as will be readily understood. By this arrangement, the clamping head 33 may be readily adjusted to clamp a heel blank on the heel rest 34, as will be readily understood. 50

The standard 34 also carries a cam plate 45 provided on its rear face with a cam surface 46, said cam plate 45 being pivoted at 41 on said Y standard and rendered angularly adjustable thereon by means of a slot and bolt connection Yby means of the clamping head 36.

48, as best shown in Fig. 6, and whereby said cam plate 45 may be angularly adjusted on said standard, as will be readily understood.

As best shown in Figs. 1 and 5, a revolving cutter 49 is mounted upon the cutter shaft 24 so as to move vertically across the breast of a heel blank clamped on the heel rest 34 as indicated by thedotted lines in Fig. 5. A guard i) for the cutter 49 is adjustably mounted on the supportin g rod 39, as indicated. A supporting bracket 5| is also adjustably clamped as indicated on the supporting rod 3! and carries a cam contact member 52 projecting as shownin'coope'rative relationship with the cam surface 4501i the cam plate 45 so as to be brought in cooperative contact therewith when the cutter 49 is in operation, as will be readily understood.

In operation, a heel blank 53, such as is illustrated in Figs. '7 and 8, rst properly positioned.

on the heel rest 34 is securely clamped thereon Then, by manipulating the handles 4I and 2 I, theoperator passes the cutter 49 vertically along the breast of the heel blank while holding the contact member 50 in cooperative sliding relationship' with the cam surface 46 on thev cam plate 45. As will be noted, the vs'idesof'thevheel blank 53 are curved and `dressed in the usual way and the cutter 49 is also shaped to cut the breast of the heel on a curve, as bestindicated in Fig. 10. Obviously the'intersection between the curve which would be cut by the cutter 49 applied' toa stationary heel blank, would be some kind of a curve which is undesirable' at the front edges of the heel blank. The cam surface 46 is therefore so shaped with relation to the curvature of the cutter 49 as. tocause corresponding vapproach and recession of theh'eel blank during the cutting operation as 'to cause the edges 55 to be formed on straight lines as indicated'in Figs. 9 and 10. A very-desirable result in the artistic appearance of the edges of the heels may thus be readily obtained. By adjusting the angularity of the cam plate 45, the edges 55 of the heel blank may be cut straight buton slanting lines as and when desired. In this way, heel blanks may be accurately, uniformly and quickly cut or dressed so as to require a minimum of scouring or polishing before, incorporated in the shoe. 'Ihe specific form and arrangement of parts disclosed is a simple and effective one for' the purpose.

While AI have illustrated and described the preferred form of construction for carrying the invention into effect, this is capable of variation and modification without departing from the spirit of the invention. I therefore do not wish to be limited to the precise details disclosed, but

desire to avail myself of such variations and modications as fall Within the scope of the appended claims.

I claim: Y

1. A machine of the class described comprising a heel blank clamping member; a cutter member adapted toshape the breast lof av blank in said clamp;V means for causing relative movement between said members in the direction of the height of the heel blank to effect such shaping; and means for causing said members to slidably approach and recede transversely of the said direction of movement and during and` simultaneously with said shaping movement.

2. 'I'he machine specied in claim 1 in which a revolving cutter member is employed.

3. 'Ihe machine specifiedl in claim 1 in which the means for causing the approach and recession of said members consists of a cam on oney of them and a coactng contact on the other.

. 4. The machine specied in claim 1 in which a revolving cutter member is employed and the means for causing. said members to approach and recede consists of a cam on one of them and a coactng contact on the other.

5. The machine specified in claim 1 in which a revolving cutter member is employed and the means for causing said members to approach and vrecede from each other consists of a replaceable and angularly adjustable cam on one orfl said members and a coactng contact on'theother.

6. A machine of the class described comprising a heel blank clamp; a cutter mounted to move along the height .of ther breast of a heel blank in said clamp and shape the same; and

-means for causing said clamp to slidably approach and recede transversely of the path of said cutter during and simultaneously with saidl shaping movement. v

7. The machine specied in claim 6 in which a revolving cutter is employed.

8. The machine'specied in claim 6 in which the means for causing the clampk to approachf" and recede consists of a cam on said clamp and a coactng contact on the cutter.

9. The machine specified in claim 6 in which a revolving'cutter is employed and the means for causing saidA clamp to approach and recede consists of a replaceable and angularly adjustable cam on said clamp and a coactng contact on the cutter.

10. 'A machine of the class described'comprising a suitable supporting frame; a heel blank' clamping member mounted to reciprocate on said frame; a handle lever operatively connected with said clamping member to effect reciprocationsy thereof; arevolving cutter mounted to reciprocate on said supportingframe in cooperative relationship withand substantially perpendicularly to the path of said clamping member and shaped to cut the breast of a heel on a suitable curve; a handle lever operatively connected with said cutter to cause its reciprocations; and a cam on said clamping member, cooperating with a contact on, saidcutter and so constructed and -arranged as to cause approach and recession of said clamping member during reciprocation of said cutter to cut the edges of the' breast of the heel on substantially straight lines.

11. The machine specified in claim 10 in which the cam is replaceable and angularly adjustable.

HOWARD B. MUNsoN. 

